Your safety is our priority. We’re doing more than ever to help ensure your protection and well-being when you come see us for care. Learn more.

A Message to Our Community: Changes to our visitation policy are in effect until further notice.

Recent News

Irvine school nurses, staff learn Stop the Bleed techniques to respond in mass-casualty situation

Irvine school nurses and athletic trainers on Tuesday, Jan. 30, learned simple techniques that could save lives in a shooting or other ...

Read More

Families anticipate exciting community blessing of surgical center

A community is as strong as its hospital, and with recent investments into Covenant Health Plainview, it’s evident that to our friends ...

Read More

Severe Flu Season Tightens Its Grip on U.S.

Americans are being hit with one of the worst flu seasons in years, with misery now widespread across 46 states, health officials say. In ...

Read More

About St. Joseph Health

SJH provides a full range of care facilities including 16 acute care hospitals, home health agencies, hospice care, outpatient services, skilled nursing facilities, community clinics and physician groups. All of our hospital and home health entities are accredited by the Joint Commission. In our award-winning facilities, SJH maintains a "continuum of care," matched to the diverse needs of the urban centers, smaller cities and rural communities who depend on us every day.

Jack Stewart, MD

  • Pulmonology
    (Board Certified)
Additional Language Spoken
Medical Groups & Affiliations
  • St. Joseph Heritage Medical Group
  • St. Joseph Hospital Affiliated Physicians
Comprehensive Pulmonary and Primary Care of Orange County
1010 West La Veta Avenue
Suite 750
Orange, CA 92868
Accepting New Patients

Primary Office

Comprehensive Pulmonary and Primary Care of Orange County
1010 West La Veta Avenue
Suite 750
Orange, CA 92868
Get Directions
(714) 361-6600
(714) 919-8804
Mon - Fri: 8:30 a.m. - 5:30 p.m.

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Pulmonology
      (Board Certified)
    Secondary Specialties
    • Critical Care Medicine
    Education & Training
    • College
      Northwestern University - 1977
    • Medical School
      Medical Northwestern University - 1979
    • Internship
      Baylor College of Medicine - 1980
    • Residency
      Baylor College of Medicine - 1982
    • Fellowship
      University Of California- Irvine - 1985
  • Biography


    Dr. Stewart received his medical degree from Northwestern University Medical School in Chicago. From there he went on to complete his residency training in Internal Medicine from Baylor College of Medicine in Houston, Texas in 1982. To further his training and education, Dr. Stewart completed his fellowship in Pulmonary and Critical Care Medicine from the University of California, Irvine in 1985. Since completing his fellowship, Dr. Stewart has practiced as an internal medicine and Pulmonary specialist dedicated to ensuring his patients receive the best possible care.

    Hospital Affiliations:
    St. Joseph Hospital, Orange, CA –
    Anaheim Regional Medical Center
    Board Certification:
    Board Certified, American Board of Internal Medicine
    Board Certified, American Board of Internal Medicine, Pulmonary Disease
    Board Certified, American Board of Internal Medicine, Critical Care Medicine

    Professional Memberships:
    Fellow of the American College of Chest Physicians
    Orange County Medical Association
    California Medical Association

    Education & Training:
    Medical School: Northwestern University Medical School
    Internship: Baylor College of Medicine, Houston
    Residency: Baylor College of Medicine, Houston
    Fellowship (Pulmonary and Critical Care Medicine): University of California, Irvine